You're assuming that the light in question still had the stock head assembly. I can't be for certain and I have no contact information for the LE guys I was shooting the breeze with. Note that I mention that I had my G2 with me, that's a 65 Lumen throw with the stock head assembly.. and the light (again appearing to be very similar to what's shown in the thread) they had was brighter than my G2, but not more so than the P6 - 65/120 lumens. So I'm going to assume that they had the upgraded heads.
Now.. finding a LED head for all of my SF lights in on the radar, particularly if they don't run as much as the original light purchase price! So please .. if you've got a line on good replacement LED heads for G2's, E1E/E2D, 6P's .. let us know!!!